}

var _ Manager = &managedFieldsUpdater{}

// NewManagedFieldsUpdater is responsible for updating the managedfields
// in the object, updating the time of the operation as necessary. For
// updates, it uses a hard-coded manager to detect if things have
// changed, and swaps back the correct manager after the operation is
// done.
func NewManagedFieldsUpdater(fieldManager Manager) Manager {
	return &managedFieldsUpdater{

		internal.NewLastAppliedUpdater(
			internal.NewLastAppliedManager(
				internal.NewProbabilisticSkipNonAppliedManager(
					internal.NewBuildManagerInfoManager(
						internal.NewManagedFieldsUpdater(
							internal.NewStripMetaManager(f),
						), gvk.GroupVersion(), subresource,
					), &FakeObjectCreater{}, internal.DefaultTrackOnCreateProbability,

		NewVersionCheckManager(
			NewLastAppliedUpdater(
				NewLastAppliedManager(
					NewProbabilisticSkipNonAppliedManager(
						NewCapManagersManager(
							NewBuildManagerInfoManager(
								NewManagedFieldsUpdater(
									NewStripMetaManager(f),
								), kind.GroupVersion(), subresource,
							), DefaultMaxUpdateManagers,
						), objectCreater, DefaultTrackOnCreateProbability,

	managed, err := internal.DecodeManagedFields(accessor.GetManagedFields())
	if err != nil {
		t.Fatalf("failed to decode managed fields: %v", err)
	}

	updater := internal.NewManagedFieldsUpdater(NoopManager{})

	newObject, _, err := updater.Apply(obj, obj.DeepCopyObject(), managed, "some_manager", false)
	if err != nil {
		t.Fatalf("failed to apply configuration %v", err)
	}